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Menu Item Description
Intel TXT Allows you to enable or disable Intel Trusted Execution Technology
(TXT). To enable Intel TXT, Virtualization Technology must be enabled
and TPM Security must be Enabled with Pre-boot measurements. By
default, the Intel TXT option is set to Off.
Power Button Allows you to enable or disable the power button on the front of the
system. By default, the Power Button option is set to Enabled.
AC Power Recovery Allows you to set how the system reacts after AC power is restored to the
system. By default, the AC Power Recovery option is set to Last.
UEFI Variable Access Provides varying degrees of securing UEFI variables. When set to
Standard (the default) UEFI variables are accessible in the Operating
System per the UEFI specification. When set to Controlled, selected UEFI
variables are protected in the environment and new UEFI boot entries are
forced to be at the end of the current boot order.
Secure Boot Allows you to enable Secure Boot, where the BIOS authenticates each
pre-boot image using the certificates in the Secure Boot Policy. Secure
Boot is disabled by default.
Secure Boot Policy When Secure Boot policy is Standard, the BIOS uses the system
manufacturer’s key and certificates to authenticate pre-boot images.
When Secure Boot policy is Custom, the BIOS uses the user-defined key
and certificates. Secure Boot policy is Standard by default.
Secure Boot Policy
Summary
Allows you to view the list of certificates and hashes that secure boot
uses to authenticated images.
Secure Boot Custom Policy Settings screen
Secure Boot Custom Policy Settings is displayed only when Secure Boot Policy is set to Custom.
In the System Setup Main Menu, click System BIOS → System Security → Secure Boot Custom Policy
Settings.
Menu Item Description
Platform Key Allows you to import, export, delete, or restore the platform key (PK).
Key Exchange Key Database Allows you to import, export, delete, or restore entries in the Key
Exchange Key (KEK) Database
Authorized Signature
Database
Allows you to import, export, delete, or restore entries in the Authorized
Signature Database (db).
Forbidden Signature
Database
Allows you to import, export, delete, or restore entries in the Forbidden
Signature Database (dbx).
Miscellaneous Settings screen
You can use the Miscellaneous Settings screen to perform specific functions such as updating the asset
tag, and changing the system date and time.
You can view the Miscellaneous Settings screen by clicking System Setup Main Menu → System BIOS →
Miscellaneous Settings.
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